Molly and a pseudocode

Question

Molly was given a pseudocode by her teacher and told her you need to understand the pseudocode to answer the riddle.

Riddle:

I am _________ like universe and stars
You will find me in computer _________
I start over and over until you are _________
Who am I? I am _________

I will add more phrases as hints if nobody is able to find the answer...

Here is the pseudocode it is a hint:

var a = "2#12jJIUP^()";
if(!a){
return "123456";
}else{
key(a);
}

key(z){
 lock(z); 
}

lock(z){
key(z);
}

Answer 1

If we follow the pseudocode it gives us an infinite loop...

So the riddle must be

I am endless (infinite) like universe and stars
You will find me in computer program (infinite loop)
I start over and over until you are stuck (freezed)
Who I am I am infinite?